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The challenge is that you might only need 6 hops to find that person you’re looking for (on average).

Yes but that would be about finding a Pete when you only know Felix - you knew every link in the chain already, including Pete.

I'm not saying don't be glad you met Felix because it led to your house, just that I don't think it's a case of 6DoS.

It seems we disagree on 6dos. I think it's a useful concept to anchor on, since you can predict the structure of your domain (social networks, renting) based on the size of the network, and then optimize your routing so you get to a certain node (a nice house to live) quickly. Or even in my case - realising there is a path in the first place.

I hope this translates more clearly into engineering terms. The original audience of this post was non-technical.

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